Air quality index [µg/m3]:
excellent ≤ 20
good ≤ 60
lightly polluted ≤ 100
moderately polluted ≤ 140
heavily polluted ≤ 200
severely polluted > 200
PM 2.5
[µg/m3]
PM 10
HOUR OPOLSKA ST. ROOF (BEFORE FILTERS)  AIR SUPPLIED TO OFFICES
150018excellentexcellent51excellent
140026goodexcellent41excellent
130030goodexcellent41excellent
120026goodexcellent41excellent
110028goodexcellent11excellent
100023goodexcellent11excellent
090017excellentexcellent11excellent
080011excellentexcellent11excellent
070014excellentexcellent21excellent
060012excellentexcellent11excellent
050015excellentexcellent11excellent
040016excellentexcellent11excellent
030016excellentexcellent11excellent
020021goodexcellent11excellent
010017excellentexcellent11excellent
000014excellentexcellent11excellent
230019excellentexcellent11excellent
220014excellentexcellent11excellent
210013excellentexcellent11excellent
200013excellentexcellent11excellent
190022goodexcellent11excellent
180014excellentexcellent11excellent
170014excellentexcellent11excellent
16009excellentexcellent21excellent